disperse vs broadcast

disperse is not a noun while broadcast is a noun.

Word	Noun	Adjective	Verb	Adverb
disperse	No	No	Yes	No
broadcast	Yes	No	Yes	No

As verbs, disperse and broadcast are synonyms defined as:

disperse (noun)	broadcast (noun)
	message that is transmitted by radio or television
	a radio or television show

disperse (verb)	broadcast (verb)
cause to separate	cause to become widely known
cause to become widely known	broadcast over the airwaves, as in radio or television
distribute loosely	sow over a wide area, especially by hand
separate (light) into spectral rays
move away from each other
to cause to separate and go in different directions